Improvement in rocking-chairs



J. LOGI-I. Rocking-Chair.

No. 220,851. Patented Oct. 21,1879.

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N.FETERS. PHOT0-LITHOGMPH WASHINGTON. D Cv UNITED STATES PATENT OFFICE.

Josnrn Loon, or New vonk, N. Y.

IMPROVEMENT IN ROCKING-CHAIRS.

Specification forming part of Letters Patent No. 220,851, dated October21, 1879; application filed March 29, 1879.

To all whom it may concern:

Be it known that I, JOSEPH LOGH, of the city, county, and State of NewYork, have in- -vented a new and useful Improvement in RockingChairs,which invention is fully set forth in the following specification,reference being had to the accompanying drawings, in which Figure lrepresents a vertical central section of a chair embodying my invention.Fig. 2 shows the spring-stop mechanism looking at the rear or inner sideof the case by which it is inclosed. Fig. 3 is a vertical crosssectionof the same, the plane of section being indicated by the line .fr a,Fig. 1.

Similar letterszindicate corresponding parts.

My invention relates to that class ot' chairs in which the rocking-framerests on a haseframe; and it consists in combining with the frames anarm which is pivoted to the rocking-frame, and carries a stop-pin at itslower end, a case which is secured to the base-frame and adapted toadmit the arm, while it contains a slot, whereby the stop-pin is guidedand arrested, and one or two springs which are attached to said case inthe interior thereof, and bear on the stop-pin, so that while therocking-frame is retracted by the springs, and is checked in its forwardand back motions, the mechanism used can be readily applied to thechair, and, moreover, is liidden and protected to a great extent.

In the drawings, the letter A designates the rocking-frame and B thebase-frame; G, the pivoted arm carrying a stop-pin, D; E, the springs,and F the inclosing-case, having a slot, Gr.

The pivoted arm G is, preferably, covered by a plate, H, at the pointwhere-it is attached to the rocking-frame A, and its pivot,

' a., consisting of ascrew, is passed through this plateinto the frame.

The case F is secured to a suitable part of the base-frame B, and thepivoted arm C enters the case through an opening formed in its top part,while the pin D projects from said arm at or near its lower end, so asto enter the slot Gr, which serves to guide the pin and to arrest thesame in the motions of the rockin g-frame.

The springs E consist of pieces of wire coiled on the pins b, (see Fig.2,) projecting from the inner surface of the case F, and their free endsare arranged to bear on the pin D with a tendency to draw the arm Cdownward.

At the point where the springs E bear on the pin D, as well as where thepin bears on the edge of the slot G, the pin is covered withindia-rubber, leather, or other similar material, to render the chairnoiseless in action, and with a like view I cover the rocking-frame A.with a layer of felt or other similar material on its lower surface.

The letter H designates anti-friction rolls, which aremounted on pins cprojecting from the inner surface of the case F, and bear on oppositesides of thetpivoted` arm G, as shown in Fig. 2.

In the motions of the rocking-frame A the pin D moves up and down in theslot G by the action of the arm C, which latter, at the same time,allows the pivot a to turn, whereby the motion sof the frame areregulated, while, by the action oi the springs E,the rockingframe isreturned to and held in the proper position on the base-frame.

The antifriction rolls c guide the arm C in its up-anddown movements,without interfering with such movements, and without noise.

It will be seen that the greatest portion of the mechanism of my fixtureis inclosed by the case F. By this arrangement its application to thechair is made very easy, and it is also hidden from view, besides beingprotected.

It may be remarked that the anti-friction rolls c can be used withoutthe case F.

What I claim as new, and desire to secure by Letters Patent, is

The combination, in a rocking-chair, with the rocking-frame and thebase-frame, of an arm which is pivoted to the rocking-frame, and carriesa stop-pin at its lower end, a case which is secured to the base-frameand adapted to admit the arm, while it contains a slot whereby thestop-pin is guided and arrested, and one or two springs which areattached to the casein the interior thereof, and bear on the stop pin,all adapted to operate substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 22d day of March, 1879.

JOSEPH LOGH. [1.. a] Witnesses:

W. HAUFF, GaAs. WAHLnRs.

